Fait mathématique: 2519 is the smallest number n where either n or n+1 is divisible by the numbers from 1 to 12.
Culture générale: 2519 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: November 23rd is the day in 1959 that General Charles de Gaulle, President of France, declares in a speech in Strasbourg his vision for a "Europe, "from the Atlantic to the Urals.